Pin core bowling ball



FIG. 1 is top view of a bowling ball showing our new design; and,

FIG. 2 is a left side view, the right side being a mirror image of the left side and any other side.

The bowling ball, FIGS., 1 and 2, includes an opaque core shaped like a bowling pin, seen through a transparent, globular cover. 

The ornamental design for a pin core bowling ball, as shown and described. 